作者:Yoshihisa Murata、Daisuke Yamashita、Katsushi Kitahara、Yohei Minasako、Atsuo Nakazaki、Susumu Kobayashi
DOI:10.1002/anie.200804544
日期:2009.2.9
Throw your hat in the ring: A highly diastereoselective synthesis of the ABC rings of (−)‐norzoanthamine has been achieved starting from the (−)‐Hajos–Parrish ketone (see scheme). Three asymmetric quaternary carbon centers on the C ring were constructed by a 1,4‐addition, and an intramolecular Diels–Alder reaction provided a trans‐decalin scaffold on the AB rings.
将您的帽子戴上戒指:从(-)-Hajos-Parrish酮开始,已经实现了(-)-去甲蒽胺ABC环的高度非对映选择性合成(请参阅方案)。通过1,4加成在C环上构建了三个不对称的季碳中心,并且分子内的Diels-Alder反应在AB环上提供了反式-萘烷骨架。